JPS55127829A - Digital distance relay unit - Google Patents

Digital distance relay unit

Info

Publication number
JPS55127829A
JPS55127829A JP3613079A JP3613079A JPS55127829A JP S55127829 A JPS55127829 A JP S55127829A JP 3613079 A JP3613079 A JP 3613079A JP 3613079 A JP3613079 A JP 3613079A JP S55127829 A JPS55127829 A JP S55127829A
Authority
JP
Japan
Prior art keywords
relay unit
distance relay
digital distance
digital
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3613079A
Other languages
English (en)
Japanese (ja)
Other versions
JPS646608B2 (enrdf_load_stackoverflow
Inventor
Yasuhiro Kurosawa
Tetsuo Matsushima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP3613079A priority Critical patent/JPS55127829A/ja
Priority to GB8009726A priority patent/GB2050093B/en
Priority to US06/134,075 priority patent/US4344143A/en
Publication of JPS55127829A publication Critical patent/JPS55127829A/ja
Publication of JPS646608B2 publication Critical patent/JPS646608B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/40—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to ratio of voltage and current

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP3613079A 1979-03-27 1979-03-27 Digital distance relay unit Granted JPS55127829A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3613079A JPS55127829A (en) 1979-03-27 1979-03-27 Digital distance relay unit
GB8009726A GB2050093B (en) 1979-03-27 1980-03-21 Digital distance relay system
US06/134,075 US4344143A (en) 1979-03-27 1980-03-26 Digital type distance relay system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3613079A JPS55127829A (en) 1979-03-27 1979-03-27 Digital distance relay unit

Publications (2)

Publication Number Publication Date
JPS55127829A true JPS55127829A (en) 1980-10-03
JPS646608B2 JPS646608B2 (enrdf_load_stackoverflow) 1989-02-03

Family

ID=12461193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3613079A Granted JPS55127829A (en) 1979-03-27 1979-03-27 Digital distance relay unit

Country Status (3)

Country Link
US (1) US4344143A (enrdf_load_stackoverflow)
JP (1) JPS55127829A (enrdf_load_stackoverflow)
GB (1) GB2050093B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282361A (en) * 1991-05-27 1994-02-01 Sung Lee D Device for facilitating exhaust action of an internal combustion engine

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162921A (en) * 1980-05-20 1981-12-15 Tokyo Shibaura Electric Co Protection relay unit
US4377833A (en) * 1981-08-17 1983-03-22 Electric Power Research Institute, Inc. Methods and apparatus for protecting electrical reactors
JPS5854825A (ja) * 1981-09-29 1983-03-31 株式会社東芝 保護継電装置
JPS5854824A (ja) * 1981-09-29 1983-03-31 株式会社東芝 保護継電装置
JPS6039312A (ja) * 1983-08-10 1985-03-01 株式会社東芝 保護継電装置
JPS60113615A (ja) * 1983-11-24 1985-06-20 株式会社東芝 デイジタル形保護継電装置
SE441138B (sv) * 1984-02-01 1985-09-09 Asea Ab Digitalt impedansrele
JPH0828934B2 (ja) * 1984-07-31 1996-03-21 株式会社東芝 保護制御装置
JPS61112527A (ja) * 1984-11-07 1986-05-30 三菱電機株式会社 デイジタル距離継電器
JPS6240019A (ja) * 1985-08-13 1987-02-21 三菱電機株式会社 デジタル距離継電方式
US4747061A (en) * 1986-03-17 1988-05-24 Westinghouse Electric Corp. Automatic transfer switch for a wide range of source voltage
DE3611083A1 (de) * 1986-04-03 1987-10-08 Licentia Gmbh Verfahren und vorrichtung fuer die anregung eines mehrphasigen distanzschutzes
AU603871B2 (en) * 1987-03-03 1990-11-29 Mitsubishi Denki Kabushiki Kaisha Digital locator
JP2694993B2 (ja) * 1989-02-22 1997-12-24 株式会社日立製作所 電力用信号処理システムおよびディジタル保護リレー装置
US5790418A (en) * 1995-10-17 1998-08-04 Schweitzer Engineering Laboratories, Inc. Adaptive polarizing memory voltage time constant
JP3456952B2 (ja) * 2000-06-28 2003-10-14 株式会社東芝 ディジタル形距離継電器
JP2003070151A (ja) 2001-08-27 2003-03-07 Toshiba Corp 保護継電装置
JP3830824B2 (ja) * 2002-01-28 2006-10-11 株式会社東芝 ディジタル形方向継電器
US8022709B2 (en) * 2006-09-19 2011-09-20 Abb Technology Ag Method and apparatus for determining circular characteristic
US8045307B2 (en) * 2006-10-13 2011-10-25 Abb Technology Ag Faulted phase decision method between current and voltage based delta phase selectors
US10938314B2 (en) 2018-07-23 2021-03-02 Smart Wires Inc. Early detection of faults in power transmission lines
US11411389B1 (en) * 2021-03-15 2022-08-09 General Electric Technology Gmbh Systems and methods for a controlled dynamic MHO distance characteristic

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599044A (en) * 1970-04-30 1971-08-10 Fuji Electric Co Ltd Superhigh-speed relaying system and apparatus for protection of power systems
CH565468A5 (enrdf_load_stackoverflow) * 1973-01-31 1975-08-15 Bbc Brown Boveri & Cie
US3885199A (en) * 1973-07-02 1975-05-20 Hitachi Ltd Protective relaying device
JPS52100149A (en) * 1976-02-18 1977-08-22 Tokyo Electric Power Co Inc:The Digital failure point evaluating unit
US4183072A (en) * 1976-12-29 1980-01-08 Mitsubishi Denki Kabushiki Kaisha Protective relaying system
JPS6046615B2 (ja) * 1977-06-13 1985-10-17 東京電力株式会社 保護制御装置
US4219860A (en) * 1978-12-20 1980-08-26 General Electric Company Overcurrent relay apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282361A (en) * 1991-05-27 1994-02-01 Sung Lee D Device for facilitating exhaust action of an internal combustion engine

Also Published As

Publication number Publication date
GB2050093A (en) 1980-12-31
US4344143A (en) 1982-08-10
JPS646608B2 (enrdf_load_stackoverflow) 1989-02-03
GB2050093B (en) 1984-05-02

Similar Documents

Publication Publication Date Title
JPS55127821A (en) Digital protection relay unit
JPS55127829A (en) Digital distance relay unit
JPS55125025A (en) Digital distance relay
JPS5644345A (en) Distance relay
JPS5648021A (en) Relay
JPS5597120A (en) Digital relay
JPS55125026A (en) Digital distance relay
JPS5657232A (en) Relay
JPS5693237A (en) Relay
JPS567321A (en) Relay
JPS5611824A (en) Relay
JPS5686416A (en) Relay
JPS5641722A (en) Digital protective relay
JPS55117419A (en) Digital distance relay unit
JPS55117420A (en) Digital distance relay unit
JPS55125027A (en) Digital distance relay
JPS55125028A (en) Digital distance relay
JPS5691619A (en) Digital distance relay
JPS5646623A (en) Digital distance relay
JPS55141918A (en) Digital distance relay
JPS55136822A (en) Digital distance relay
JPS55166830A (en) Relay
JPS5657233A (en) Relay
JPS55139016A (en) Digital protection relay
JPS5541110A (en) Digital distance relay unit